Bank Polska Kasa Opieki Spółka Akcyjna, commonly using the shorter name Bank Pekao S.A., is a universal bank and currently the second largest bank in Poland with its headquarters in Warsaw. The Italian bank UniCredit used to own 59% of the company. It sold the bank in December 2016. Now Powszechny Zakład Ubezpieczeń owns 20% of the company, Polish Development Fund 12.80%, UniCredit 6.28% and others 60.94%.

UniCredit S.p.A. is an international banking group headquartered in Milan. It was Italy's only systemically important bank and the world's 34th largest by assets. It was formed through the merger of Credito Italiano and Unicredito in 1998 but has a corporate identity stretching back to its first foundation in 1870 as Banca di Genova. UniCredit is listed on the Borsa Italiana and Frankfurt Stock Exchange and is a constituent stock of the Euro Stoxx 50 index of leading shares.